Space-bar for justifying matrix-lines.



D. PETRI-PALMEDO.

SPACE BAR FOR JUSTIFYING MATRIX LINES.

APPLICATION FILED NOV. 10, 1911.

1, 1 1 2,652, Patented Oct. 6, 1914.

mvrrnn STATES rarnn'r orrion.

DAVID PETRLPALMEDO, OF HOBOKEN, NEW JERSEY, ASSIG-NOR I'O ELECTRIC COlVfPOSI- TOR COMPANY, OF NEW YORK, N. Y., A CGRPORATION OF NE'W JERSEY.

SPACE-BAR FOR JUSTIFYING MATRIX-LINES.

This invention relates to improvements in expanding space bars adapted for use in justifying lines of assembled matrices preparatory to casting a type bar from said justified line.

The object of the invention is to producef such a space bar in a form which costs less and will be more durable in service than the space bars heretofore known.

The invention consists in the construction and combination of parts shown, as hereinafter set forth and claimed.

In the drawing, Figure 1 is a perspective view of my improved space bar. Fig. 2 is an elevation of one side thereof. Fig. 3 is an elevation of the opposite side. Fig.4 is an edge view. Fig. 5 is an elevation of the inner side of the fixed wedge member. Fig. 6 is a sectional view thereof in the plane indicated by line 66 on Fig. Fig. 7 is a vertical sectional view of Fig. 5; and Figs. 8 and 9 are respectively transverse sectional views of the movable wedge member in the planes indicated by line 8-8 and 99 respectively.

The space bar consists of two wedge members whose engaging faces are oppositely inclined, but at the same angle, so that their outer faces will be parallel at all times so long as the inner faces are in contact. The fixed member A is intended to occupy a fixed position in the matrix line. It is thickest at its upper edge. It has in its inner face a vertical groove at extending from top to bottom, and of uniform depth from end to end. The sides of this groove are undercut or dove-tailed, as shown clearly in Fig. 6.

The member B is the movable member and is thickest at its lower end. It has on its inner face a tongue or rib I) which extends from top to bottom, and is undercut or clove-tailed; and, when the parts are as sembled, as shown, fits nicely within the groove a, but permits the member B to move relatively to the member A. This rib not only acts to hold the two parts in proper Specification of Letters Patent.

Application filed November 10, 1911.

Patented Oct. 6, 1914.

Serial No. 659,500.

relative position and to permit the member being justified; and this added strength produced by this rib will enable the member B to stand this pressure without danger of being bent in actual service. Space bars whose movable depending member has its central part out out are frequently bent in practice, and thereby the space bar, for the time being, at least, becomes useless. After these two parts A and B have been assembled as described, the pins 6 b are driven into the member B, and are adapted to engage respectively with the top of the member A and the bottom thereof. There is a notch a cut in the top of the member A and the pin 6 goes into it when the upper ends of the two members A and B are alined.

There are two laterally projecting ears a at the lower end of the member A. These serve to be engaged by their upper edges by bars or the like to prevent the upward movement of the member A when the member B is being pushed up for the purpose of expanding the space bar. These ears are considerably thicker than the thickness of the thin lower edge of member A, and preferably their thickness is equal to the thickness of the thick upper end of said member A. The outer surfaces of these ears are in the same plane as the outer vertical surface of the member A; wherefore since they are thicker than the thin part of member A, from which they project, they extend alongside of both edges of the wedge bar B, and thus supplement the tongue I) and groove c in guiding the wedge bar B in its required straight path. It will be noticed that there are no other lateral projectionsor indentations in the edges of these two members of the space bar; and this enables these space bars to be produced more economically than if there were a plurality of such lateral projections or indentations as has been common heretofore in space bars.

Having thus described my invention, I claim:

1. An expansible space bar for justifying matrix lines, comprising a body wedge than, ber and a relatively movable wedge bar of equal width,said body wedge member having a vertical outer face and an inner face which is inclined toward the outer face from top to bottom, said inner face having formed in it and extending from top to bottom a dovetailed groove of like depth from end to end,-and the wedge bar having a vertical outer face and an inner face which is inclined toward the outer face from the lower end to the upper end of said wedge bar,

there being formed on the inner inclined face of said wedge bar a projecting dovetailed rib which is of equal thickness from end to end and is slidably fitted in the groove in the inclined face of the body wedge member, said wedge bar having two pins fixed to it and projecting respectively over and under the body wedge member, the wedge bar being devoid of lateral projections and the body wedge member having no-lateral projections except that it has two ears which project laterally at the lower edge thereof.

2. An expansible space bar for justifying matrix lines comprising a body wedge member and a relatively movable wedge bar of equal width, said body Wedge member having a vertical outer face and having an inner face which is inclined toward the outer face from the top to the bottom thereof, said inclined inner face having formed in it and eX- tending from top to bottom of said member a dovetailed groove of like degth from end to end, and said body member having projecting sidewise from both of the lower thin edges of said body member ears which are thicker than the thickness of said thin lower end of the wedge member, said ears being arranged with their outer surfaces in the same plane with the outer vertical surface of said body member,and the wedge bar having a vertical outer face and an inner face which is inclined toward the outer face from the lower end to the upper end of said wedge bar,there being formed on the inner face of said wedge bar a projecting dovetailed rib which is of equal thicknes from end to end and is slidably fitted in the groove of the inclined face of the body wedge member.

In testimony whereof, I hereunto aiiiX my signature in the presence of two witnesses.

DAVID PETRIPALMEDO. Witnesses human L. FULLER, E. F. GODDARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 13. D. 

